`ember release --premajor alpha` unexpected behavior with initial version 0.0.0

[lolmaus]

Steps to reproduce

Start a new project, ember addon command defaults the version number to 0.0.0.

Install ember-cli-release and run ember release --premajor alpha.

Expected

The readme says:

Increment the major SemVer version, and add given prerelease identifier with version of 0.

Thus, I expect the version to become 1.0.0-alpha.0.

Actual

0.1.0 is released.